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| author | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2019-07-29 08:58:03 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-07-29 17:58:52 -0400 |
| commit | 29d8eb3345fe52d1bb338c541b76684f4c3a3ec6 (patch) | |
| tree | 1004da1dad95b5e9fd8d8ba005476b69e1c0e40b /drivers/mtd/nand | |
| parent | 7bf9972643cda406b2ba13f418d535d500d53628 (diff) | |
| download | u-boot-29d8eb3345fe52d1bb338c541b76684f4c3a3ec6.zip u-boot-29d8eb3345fe52d1bb338c541b76684f4c3a3ec6.tar.gz u-boot-29d8eb3345fe52d1bb338c541b76684f4c3a3ec6.tar.bz2 | |
nand: davinci: add support for driver model
Extend the davinci NAND driver to support the driver model. For now this
doesn't add any device-tree parsing due to the fact that we can't access
the actual nand node on the device-tree - it's a subnode of the aemif
device and we don't have an aemif driver on davinci at the moment.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers/mtd/nand')
| -rw-r--r-- | drivers/mtd/nand/raw/davinci_nand.c | 46 |
1 files changed, 45 insertions, 1 deletions
diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c index e1c4498..33c2f16 100644 --- a/drivers/mtd/nand/raw/davinci_nand.c +++ b/drivers/mtd/nand/raw/davinci_nand.c @@ -31,6 +31,7 @@ #include <common.h> #include <asm/io.h> #include <nand.h> +#include <dm/uclass.h> #include <asm/ti-common/davinci_nand.h> /* Definitions for 4-bit hardware ECC */ @@ -785,10 +786,53 @@ static void davinci_nand_init(struct nand_chip *nand) nand->dev_ready = nand_davinci_dev_ready; } -int board_nand_init(struct nand_chip *chip) __attribute__((weak)); +#ifdef CONFIG_SYS_NAND_SELF_INIT +static int davinci_nand_probe(struct udevice *dev) +{ + struct nand_chip *nand = dev_get_priv(dev); + struct mtd_info *mtd = nand_to_mtd(nand); + int ret; + + nand->IO_ADDR_R = (void __iomem *)CONFIG_SYS_NAND_BASE; + nand->IO_ADDR_W = (void __iomem *)CONFIG_SYS_NAND_BASE; + + davinci_nand_init(nand); + + ret = nand_scan(mtd, CONFIG_SYS_NAND_MAX_CHIPS); + if (ret) + return ret; + + return nand_register(0, mtd); +} + +static const struct udevice_id davinci_nand_ids[] = { + { .compatible = "ti,davinci-nand" }, + { } +}; + +U_BOOT_DRIVER(davinci_nand) = { + .name = "davinci-nand", + .id = UCLASS_MTD, + .of_match = davinci_nand_ids, + .probe = davinci_nand_probe, + .priv_auto_alloc_size = sizeof(struct nand_chip), +}; + +void board_nand_init(void) +{ + struct udevice *dev; + int ret; + ret = uclass_get_device_by_driver(UCLASS_MTD, + DM_GET_DRIVER(davinci_nand), &dev); + if (ret && ret != -ENODEV) + pr_err("Failed to initialize %s: %d\n", dev->name, ret); +} +#else +int board_nand_init(struct nand_chip *chip) __attribute__((weak)); int board_nand_init(struct nand_chip *chip) { davinci_nand_init(chip); return 0; } +#endif /* CONFIG_SYS_NAND_SELF_INIT */ |